秩父山地の高地亜寒帯林における着生地衣群落の概況

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  • A synecological study on the epiphyte communities of lichens in the subalpine forests of Titibu mountain region in Japan.
  • チチブ サンチ ノ コウチ アカンタイリン ニ オケル チャクセイ チイ グンラク ノ ガイキョウ

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1. As the result of a synecological survey of the epiphyte communities of lichens in the subalpine forests of Titibu mountain region, some 1600-2400m in alt., the Usnea longissima-Parmelia pseudophysodes, the Alectoria lata-Cetraria pseudocomplicata and the Usnea diffracta-Sphaerophorus Ep. -Associations can be recognized on the barks of Tsuga diversifolia MAST., Picea jezoensis CARR. v. hondoensis REHD., Abies Veiichii LIND. and Abies Mariesii MAST. in the forests of the Tsuga diversifolia-Rumohra mutica-and the Abies Veitchii-A. Mariesii-associations^<3)>. And every Ep.-Association is composed of four or six Ep.-Sociations which are named after the dominant species. 2. An outline of the distributions and developments of every Ep.-Association and Ep.-Sociation here described is explained. 3. The epiphyte communities of lichens in the subalpine forests of the region are highly characterized by the life-forms^<5)> of Ps, VR, Ef and MCf. 4. From the view-point of the life-form spectra of epiphytic lichens, anyone will easily be able to point out a clear difference distinguished between the Fagus crenata consociation of the temperate forests in the Titibu and Iide mountain regions and the subalpine forests of Titibu mountain region.

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